Tom, Russian wildrye

2003 ◽  
Vol 83 (4) ◽  
pp. 789-791 ◽  
Author(s):  
J. G. McLeod ◽  
P. G. Jefferson ◽  
R. Muri ◽  
T. Lawrence
Keyword(s):  
Seed Weight ◽  
Recurrent Selection ◽  
Agricultural Research ◽  
Seedling Emergence ◽  
Research Centre ◽  
Psathyrostachys Juncea ◽  
Cultivar Description ◽  
Diploid Cultivar ◽  
Russian Wildrye ◽  
Selection For

Tom, a new diploid cultivar of Russian wildrye, Psathyrostachys juncea (Fisch.) Nevski, was developed by the Semiarid Prairie Agricultural Research Centre, Research Branch, Agriculture and Agri-Food Canada, Swift Current, SK. Tom is an eight-clone synthetic developed by recurrent selection for heavy seed weight and improved seedling emergence from deep planting. Tom represents a significant improvement in herbage yielding ability over the check cultivars Swift and Tetracan. Key words: Cultivar description, Russian wildrye, Psathyrostachys juncea (Fisch.) Nevski, seedling emergence, seed weight

SELECTION FOR IMPROVED SEEDLING VIGOR IN RUSSIAN WILD RYEGRASS

1984 ◽  
Vol 64 (1) ◽  
pp. 131-138 ◽  
Author(s):  
J. D. BERDAHL ◽  
R. E. BARKER
Keyword(s):  
Seed Weight ◽  
Seedling Emergence ◽  
Field Tests ◽  
Visual Assessment ◽  
Seedling Vigor ◽  
Coleoptile Length ◽  
Stand Establishment ◽  
Psathyrostachys Juncea ◽  
Emergence Percentage ◽  
Selection For

Seedling emergence of 30 open-pollinated progeny lines of Russian wild ryegrass (Psathyrostachys juncea (Fisch.) Nevski. Syn: Elymus junceus Fisch.) ranging in seed weight from 2.1 to 4.5 mg/seed was evaluated in laboratory and greenhouse tests and compared to stand establishment capability in the field. Increases in emergence percentage and coleoptile length associated with increased seed weight diminished when seed weights of parents increased beyond 3.0 mg/seed. Emergence in two field environments was correlated with emergence from a 5-cm planting depth in the greenhouse (r = 0.70** and 0.71** for field tests 1 and 2, respectively) and with coleoptile length (r = 0.51** and 0.64**), but not with emergence under laboratory-induced drought stress of −1.1 MPa matric potential (r = −0.05 and 0.13). Experimental error was high for measurements of forage yields in the establishment year (CV = 38% and 36% for field tests 1 and 2, respectively), and resources required to obtain reliable yields would limit testing to a small number of entries. Preliminary screening of a Russian wild ryegrass population for improved seedling vigor could be accomplished by first eliminating plants with small seed size by visual assessment of seed samples. This could then be followed by selection for increased coleoptile length among progeny lines from those plants with medium or large seed.Key words: Russian wild ryegrass, seedling vigor, stand establishment, seed weight, coleoptile length

The evaluation of economically important traits of promising genotypes of Russian wildrye (Psathyrostachys juncea (Fisch.)) in the south of Central Siberia

2021 ◽  
pp. 39-42
Author(s):  
В.Ф. Кадоркина ◽  
М.С. Шевцова
Keyword(s):  
Agricultural Research ◽  
Vegetative Reproduction ◽  
Dry Mass ◽  
Parent Material ◽  
Forage Yield ◽  
Yield Increase ◽  
Psathyrostachys Juncea ◽  
Russian Wildrye ◽  
The Republic ◽  
Green Mass Yield

Исследования проводились в сухостепной зоне Республики Хакасия в 2018–2020 годах с целью оценки и отбора перспективных селекционных образцов ломкоколосника ситникового по хозяйственно ценным признакам. Материалом исследований служили 16 образцов, высеянных семенами, и 8 сортообразцов вегетативного способа размножения, отобранных из питомника исходного материала 2015 года посева и в дальнейшем проанализированных в селекционных питомниках. В качестве стандарта взят сорт селекции Якутского НИИСХ Манчаары. В период вегетации проводились учёты и фенологические наблюдения за развитием растений. Работа проведена в соответствии с методическими указаниями по селекции кормовых культур. Исходя из биологических особенностей ломкоколосника ситникового, с целью увеличения урожайности семян для дальнейшей селекционной работы при вегетативном размножении их можно получить уже на второй год жизни. По основным показателям семенной продуктивности в селекционном питомнике вегетативного размножения отобраны образцы А 1, А 2, А 6 и А 12, также эти биотипы отмечены и по скороспелости: период от начала вегетации до созревания семян составил 88–94 дня. По кормовой продуктивности достоверная прибавка получена у А 1, А 2, А 6, А 10, А 12. В селекционном питомнике семенного размножения по основным показателям кормовой продуктивности выделены номера А 1, А 3, А 4.1, превышающие стандарт (сорт Манчаары) по продуктивности зелёной массы в 1,4–1,8 раза, по продуктивности сухой массы — в 1,2–1,6 раза. В этом питомнике образцы сформировали продуктивные стебли только на третий год жизни. The research was conducted in the dry steppe of the Republic of Khakassia in 2018–2020 to evaluate and select promising genotypes of Russian wildrye. The objects of this study were 16 genotypes grown from seeds and 8 genotypes of vegetative reproduction obtained from the nursery of parent material in 2015. Variety “Manchaary” from the Yakutian Agricultural Research Institute performed as the standard. Plant phenology was analyzed according to the recommended methods for forage crop breeding. To increase seed yield for plant breeding vegetative reproduction of Russian wildrye can be of great importance allowing seed production in the second year already. Genotypes A1, A2, A6, and A12 showed the highest seed productivity in the nursery of vegetative reproduction. They also were characterized by rapid maturation: the period from germination to maturation amounted to 88–94 days. A1, A2, A6, A10, and A12 had significant forage yield increase. Genotypes A1, A3, and A4.1 showed the best feed productivity in the nursery of seed reproduction. They exceeded the standard by 1.4–1.8 times in green mass yield and 1.2–1.6 times — in dry mass productivity. Genotypes formed productive stems only in the third year in the nursery.

AC Rifle winter rye

1996 ◽  
Vol 76 (1) ◽  
pp. 143-144 ◽  
Author(s):  
J. G. McLeod ◽  
J. F. Payne
Keyword(s):  
Secale Cereale ◽  
Agricultural Research ◽  
Yield Potential ◽  
Research Centre ◽  
Winter Rye ◽  
Western Canada ◽  
Lodging Resistance ◽  
Dwarf Cultivar ◽  
Secale Cereale L ◽  
Cultivar Description

AC Rifle, a cultivar of winter rye (Secale cereale L.), was developed at the Semiarid Prairie Agricultural Research Centre, Research Branch, Agriculture and Agri-Food Canada, Swift Current, Saskatchewan. It is the first semi-dwarf cultivar registered for production in the Prairie Provinces of Western Canada. AC Rifle represents a 30% reduction in plant height compared to conventional height cultivars. Gram yield potential and winter hardiness of AC Rifle is equal to the check cultivars It has improved lodging resistance over all other adapted cultivars of winter rye. Key words: Cultivar description, semi-dwarf, rye (winter), Secale cereale L.

OAC Bright birdsfoot trefoil

1997 ◽  
Vol 77 (2) ◽  
pp. 251-253 ◽  
Author(s):  
B. E. Twamley ◽  
D. T. Tomes ◽  
S. R. Bowley
Keyword(s):  
Key Words ◽  
Seed Yield ◽  
Recurrent Selection ◽  
Lotus Corniculatus ◽  
Birdsfoot Trefoil ◽  
Science Department ◽  
Seedling Vigour ◽  
Herbage Yield ◽  
Cultivar Description ◽  
Selection For

OAC Bright is a birdsfoot trefoil (Lotus corniculatus L.) cultivar developed by the Crop Science Department, University of Guelph. It was developed by within and among half-sib progeny recurrent selection for seedling vigour and seed yield. OAC Bright has 2% higher seedling vigour and 0.8% higher herbage yield than Leo. It has similar maturity and persistence to Leo. Key words: Birdsfoot trefoil, cultivar description, seedling vigour, seed yield, recurrent selection

AC Certa spring triticale

1996 ◽  
Vol 76 (2) ◽  
pp. 333-335 ◽  
Author(s):  
J. G. McLeod ◽  
R. M. DePauw ◽  
J. M. Clarke ◽  
W. H. Pfeiffer
Keyword(s):  
Agricultural Research ◽  
Bipolaris Sorokiniana ◽  
Test Weight ◽  
Research Centre ◽  
X Triticosecale ◽  
Spring Triticale ◽  
Cultivar Description ◽  
Sprouting Resistance ◽  
Triticosecale Wittmack ◽  
X Triticosecale Wittmack

AC Certa, a spring triticale cultivar (X Triticosecale Wittmack) was developed at CIMMYT and introduced by the Semiarid Prairie Agricultural Research Centre, Research Branch, Agriculture and Agri-Food Canada, Swift Current, via the 21st ITSN in 1989. It is widely adapted to the Prairie Provinces. AC Certa represents a significant improvement in test weight. AC Certa has an improved Hagberg Falling Number which is usually associated with improved harvest-time sprouting resistance AC Certa is very resistant to the prevalent races of stem rust (caused by Puccinia graminis Pers. f. sp tritici Eriks. and E. Henn.); leaf rust (caused by P. recondita Rob. ex Desm. f. sp. tritici); highly resistant to common bunt [caused by Tilletia foetida Wallr.) Liro and T. caries (DC) Tul.], and resistant to common root rot [caused primarily by Bipolaris sorokiniana (Sacc. in Sorok.) Shoemaker]. Key words: Cultivar description, test weight, sprouting resistance, triticale (spring, X Triticosecale Wittmack)

AC Alta spring triticale

1996 ◽  
Vol 76 (1) ◽  
pp. 139-141 ◽  
Author(s):  
J. G. McLeod ◽  
R. M. DePauw ◽  
J. M. Clarke ◽  
T. F. Townley-Smith
Keyword(s):  
Root Rot ◽  
Agricultural Research ◽  
Research Centre ◽  
Common Bunt ◽  
Common Root Rot ◽  
Spring Triticale ◽  
Yield Test ◽  
Cultivar Description ◽  
Moderately Resistant ◽  
Triticosecale Wittmack

AC Alta, a spring triticale cultivar (× Triticosecale Wittmack) was developed at the Semiarid Prairie Agricultural Research Centre, Research Branch, Agriculture and Agri-Food Canada, Swift Current, Saskatchewan. AC Alta is a high-yielding, large kernelled, lodging resistant cultivar of triticale which is widely adapted to the Prairie Provinces. AC Alta is very resistant to leaf and stem rust, resistant to common bunt and moderately resistant to common root rot. AC Alta will be distributed by Progressive Seeds Limited. Key words: Cultivar description, grain yield, test weight, triticale (spring), × Triticosecale Wittmack

scholarly journals Assessment of different rates of NPK fertilizer on the growth and yield components of two exotic okra (Abelmoschus esculentus L.) western urban of Sierra Leone

2020 ◽  
Vol 26 ◽  
Author(s):  
P. M. Ngegba ◽  
S. M. Kanneh ◽  
D. D. Quee
Keyword(s):  
Sierra Leone ◽  
Yield Components ◽  
Seed Weight ◽  
Agricultural Research ◽  
Block Design ◽  
Climatic Conditions ◽  
Growth And Yield ◽  
Research Centre ◽  
Inland Valley ◽  
Dry Spell

The experiment was conducted in an Inland Valley Swamp during the dry spell of 2017 laid out in a randomized complete block design (RCBD) three replications at the Kabala Horticultural Crops Research Centre (KHCRC) cropping site, Ogoo Farm of the Sierra Leone Agricultural Research Institute (SLARI), Freetown, Sierra Leone. Raised beds measuring 5m x 1m (6 m2) with a 1m furrow between beds. Inter and intra row spacing of 75 cm by 50 cm with two rows per bed and two seeds per hills were directly sown. The treatments constituted NPK 15:15:15 at the rate of 0, 90, 120 and 150 kg/ha designated as T1, T2, T3 & T4  and Two hybrids of okra were used as experimental materials obtained from Indo-American Hybrid Seed Company, India; Okra-WASA-HyOKR-1 and Okra-WASA-HyOKR-2. Seeds were treated with Thiram Poison for longevity. Result indicates T2 (25.2; 35.1 cm) and T4 (56.9 cm) treatments recorded tallest plant heights followed by T2 (24.0, 34.4 & 50.1 cm), while T1 (18.8, 28.4 & 33.3 cm) had the shortest plant heights at 4, 8 & 10 Week After Planting respectively. Similarly, T4 & T2 (38.9, 65.5 & 44.8 cm) exhibited the largest SG and T1 (21.7, 33.0 & 52.0 cm) the least values at 4, 8 & 10 Week After Planting. While, the widest and narrowest LA at 4, 8 & 10 Week After Planting was observed in T3 (131.3, 135.0 & 158.5 cm2) and T1 (120.8, 121.8 & 128.1 cm2). With respect to yield and yield components, the longest (22.0 cm) and heaviest (112.7 g) fruit were recorded by T3 followed by T2 (19.1 cm & 101.3 g) with T1 having the shortest (11.7 cm) and lightest (52.3 g). The width of pod in T3 (31.2 cm) was greater than the rest of treatments and as usual, T1 indicated the least value (14.6 cm) respectively. The average NP produced plant-1 was shown by T2 & T3 (4.0) with the least of fruit produced by T1 (2.0). Also, 100 seed weight, T3 (106.7 g) weighted the highest followed by T2 (103.3 g), while T1 (60.3 g) accounted for the lowest seed weight. Conclusively, the two materials are adaptable to the climatic conditions of Sierra Leone (Western area). Hence further evaluation required across vegetable growing zones.

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